Leonard, realizing his pursuit of Penny is fruitless, has an unexpected encounter with a fellow scientist (Sara Gilbert).

Leonard, Sheldon, Wolowitz and Koothrappali attend Penny's Halloween party.

Bernadette wants Wolowitz to move out of his mom's house; Sheldon is caught in the middle of Amy and Wil Wheaton's argument.

After President Trump's remarks about purchasing Greenland, Conan O'Brien takes the show overseas for the 12th time to help broker the deal.

Ted and Barney pick a fight with a bunch of guys to improve their friends' perceptions of them.

Ted goes out of his way to keep his sister out of trouble when she comes to visit; Marshall introduces Robin to a Minnesota-themed bar.

Bernadette wants Wolowitz to move out of his mom's house; Sheldon is caught in the middle of Amy and Wil Wheaton's argument.

Raj and Howard try to figure out why Sheldon disappears at 2:45 every afternoon; jealousy arises in Penny and Leonard's relationship.

Darlene and Ben get into a fight and ignore Becky's boundaries in the house; Dan accuses Jackie of losing all of their home videos.

Darlene has issues with Dan's plumbing work in her new house; Jackie tries to find a caregiver for Bev.

Dog River prepares for its annual talent show; Brent's cousin Carl, whom everyone seems to love, except Brent, comes for a visit.

Davis tries to keep up with Brent; Lacey tries to prove she has community spirit by trying to save one of the town's historic landmarks.

Brent develops a grudge for an out-of-town comedian who performs at a comedy night in Dog River; Hank is star-struck by the guy and arranges to be the M.C. for the night.

Brent puts a sign with slogans in front of the gas station and coffee shop; Brent and Emma worry about Oscar's memory.

The Dog River hockey team finds itself at a crossroads; Brent is a great goalie and is being taken for granted by his teammates; when an offer from a rival team comes his way, he has a decision to make.

On the way to the Grey Cup, Brent considers his real feelings for Lacey.

Penny sleeps on Leonard and Sheldon's couch when Wolowitz seduces her friend and takes over her apartment; in need of a fourth member, the guys ask Penny to join their "Halo" team.

On a blind date, Koothrappali discovers that he can talk to the opposite sex after a few drinks, but his date takes an interest in Sheldon.

Penny tries to mediate when Sheldon and Leonard disagree on whether to present their joint findings at a physics conference.

Leonard and Sheldon try to avoid seeing Penny perform after hearing her sing, but the elaborate lie Sheldon tells leads to an unexpected result.

Leonard and the boys avoid Sheldon when he gets sick, leaving Penny to nurse him back to health.

Sheldon and Leonard look for a way to derail a 15-year-old physics prodigy's research.

When Sheldon tries to prove his mental superiority as they train for the Physics Bowl, the guys kick him off the team and bring his nemesis (Sara Gilbert) aboard.

Leonard and the guys buy a time machine prop from a classic movie; Penny tells the guys their obsession with comics and toys is pathetic.

Leonard devises a plan to eliminate his rivals when he, Wolowitz and Koothrappali all fall for Sheldon's twin sister, but his plan backfires when Sheldon decides to choose who his sister dates.

Penny learns that Leonard does not celebrate birthdays, so she plans a surprise party; Sheldon unexpectedly gets to live out one of his biggest fantasies in an electronics store.

When Leonard finally works up the courage to ask Penny out on a date, they each turn to Sheldon for advice.

Penny's first date with Leonard goes awry; Penny finds Sheldon to be an unwilling confidant.

After seeing Penny with a handsome new guy, Leonard rushes into a rebound relationship with Sheldon's nemesis, Leslie Winkle.

Sheldon creates a monster when he introduces Penny to online gaming.

Penny sleeps on Leonard and Sheldon's couch when Wolowitz seduces her friend and takes over her apartment; in need of a fourth member, the guys ask Penny to join their "Halo" team.

On a blind date, Koothrappali discovers that he can talk to the opposite sex after a few drinks, but his date takes an interest in Sheldon.

Penny tries to mediate when Sheldon and Leonard disagree on whether to present their joint findings at a physics conference.

Leonard and Sheldon try to avoid seeing Penny perform after hearing her sing, but the elaborate lie Sheldon tells leads to an unexpected result.

Leonard and the boys avoid Sheldon when he gets sick, leaving Penny to nurse him back to health.

Sheldon and Leonard look for a way to derail a 15-year-old physics prodigy's research.

When Sheldon tries to prove his mental superiority as they train for the Physics Bowl, the guys kick him off the team and bring his nemesis (Sara Gilbert) aboard.

Leonard and the guys buy a time machine prop from a classic movie; Penny tells the guys their obsession with comics and toys is pathetic.

Leonard devises a plan to eliminate his rivals when he, Wolowitz and Koothrappali all fall for Sheldon's twin sister, but his plan backfires when Sheldon decides to choose who his sister dates.

Penny learns that Leonard does not celebrate birthdays, so she plans a surprise party; Sheldon unexpectedly gets to live out one of his biggest fantasies in an electronics store.

When Leonard finally works up the courage to ask Penny out on a date, they each turn to Sheldon for advice.

Penny's first date with Leonard goes awry; Penny finds Sheldon to be an unwilling confidant.

After seeing Penny with a handsome new guy, Leonard rushes into a rebound relationship with Sheldon's nemesis, Leslie Winkle.

Sheldon creates a monster when he introduces Penny to online gaming.

Penny sleeps on Leonard and Sheldon's couch when Wolowitz seduces her friend and takes over her apartment; in need of a fourth member, the guys ask Penny to join their "Halo" team.

On a blind date, Koothrappali discovers that he can talk to the opposite sex after a few drinks, but his date takes an interest in Sheldon.

Penny tries to mediate when Sheldon and Leonard disagree on whether to present their joint findings at a physics conference.

Leonard and Sheldon try to avoid seeing Penny perform after hearing her sing, but the elaborate lie Sheldon tells leads to an unexpected result.

Leonard and the boys avoid Sheldon when he gets sick, leaving Penny to nurse him back to health.

Sheldon and Leonard look for a way to derail a 15-year-old physics prodigy's research.

When Sheldon tries to prove his mental superiority as they train for the Physics Bowl, the guys kick him off the team and bring his nemesis (Sara Gilbert) aboard.

Leonard and the guys buy a time machine prop from a classic movie; Penny tells the guys their obsession with comics and toys is pathetic.

Leonard devises a plan to eliminate his rivals when he, Wolowitz and Koothrappali all fall for Sheldon's twin sister, but his plan backfires when Sheldon decides to choose who his sister dates.

Penny learns that Leonard does not celebrate birthdays, so she plans a surprise party; Sheldon unexpectedly gets to live out one of his biggest fantasies in an electronics store.

When Leonard finally works up the courage to ask Penny out on a date, they each turn to Sheldon for advice.

Penny's first date with Leonard goes awry; Penny finds Sheldon to be an unwilling confidant.

After seeing Penny with a handsome new guy, Leonard rushes into a rebound relationship with Sheldon's nemesis, Leslie Winkle.

Sheldon creates a monster when he introduces Penny to online gaming.

Brent and Lacey try to figure out their relationship; Emma's on the warpath.

Brent finds out his parents never married; Lacey's mission to help Oscar.

Davis regains sense of smell; Brent realizes how little he knows about his friends.

Oscar asks for Karen's help in getting culinary revenge against Emma.

Karen drives everyone crazy with her new hacky-sack; Oscar finds a pair of pants.

Brent buys a big-screen television; Lacey buys jewelry from Wanda.

Rachel's Italian boyfriend tries to seduce Phoebe; Rachel accidentally reveals a secret to Ross; Monica's aunt refuses to take the lasagnas she ordered.

Phoebe's psychiatrist boyfriend (Fisher Stevens) annoys her friends with his analyses of their lives.

It's Valentine's Day and, out on his first date in nine years, Ross meets up with his ex-wife. Meanwhile, Monica, Phoebe and Rachel rebel against the spirit of the day by burning mementos of past relationships.

A "high-spirited" restaurant owner wolfs down the gourmet meal Monica created as part of a job interview.

Joey asks Phoebe's sister (Lisa Kudrow in a dual role) on a date; Ross takes Lamaze classes with Carol (Jane Sibbett) and Susan (Jessica Hecht).

Monica takes Rachel to the hospital; Ross asks his dad (Elliott Gould) for advice on becoming a father.

When the girls lose money to the guys in a poker match they seek out Monica's Aunt Iris, a famous card player, for lessons and then demand a rematch.

Rachel accidentally lets Ross' pet monkey escape, and the friends form a search party; she is then horrified to learn that her former best friend is engaged to her ex-fiance.

Rachel is asked to be the maid of honor in her ex-fiance's (Mitchell Whitfield) wedding.

Monica, Rachel and Phoebe go on a covert operation to track down the woman who stole Monica's credit card.

Monica's new boyfriend (Stan Kirsch) exposes his own secret after she admits her true age.

Carol (Jane Sibbett) begins labor; Ross and Susan (Jessica Hecht) clash.

Rachel discovers Ross' feelings for her when he goes out of town on a business trip.

Joey accidentally informs a cast member (Susan Sarandon) that she will be fired so that his character will get her character's brain.

Rachel's Italian boyfriend tries to seduce Phoebe; Rachel accidentally reveals a secret to Ross; Monica's aunt refuses to take the lasagnas she ordered.

Phoebe's psychiatrist boyfriend (Fisher Stevens) annoys her friends with his analyses of their lives.

It's Valentine's Day and, out on his first date in nine years, Ross meets up with his ex-wife. Meanwhile, Monica, Phoebe and Rachel rebel against the spirit of the day by burning mementos of past relationships.

A "high-spirited" restaurant owner wolfs down the gourmet meal Monica created as part of a job interview.

Joey asks Phoebe's sister (Lisa Kudrow in a dual role) on a date; Ross takes Lamaze classes with Carol (Jane Sibbett) and Susan (Jessica Hecht).

Monica takes Rachel to the hospital; Ross asks his dad (Elliott Gould) for advice on becoming a father.

When the girls lose money to the guys in a poker match they seek out Monica's Aunt Iris, a famous card player, for lessons and then demand a rematch.

Rachel accidentally lets Ross' pet monkey escape, and the friends form a search party; she is then horrified to learn that her former best friend is engaged to her ex-fiance.

Rachel is asked to be the maid of honor in her ex-fiance's (Mitchell Whitfield) wedding.

Monica, Rachel and Phoebe go on a covert operation to track down the woman who stole Monica's credit card.

Monica's new boyfriend (Stan Kirsch) exposes his own secret after she admits her true age.

Carol (Jane Sibbett) begins labor; Ross and Susan (Jessica Hecht) clash.

Rachel discovers Ross' feelings for her when he goes out of town on a business trip.

Joey accidentally informs a cast member (Susan Sarandon) that she will be fired so that his character will get her character's brain.

Rachel's Italian boyfriend tries to seduce Phoebe; Rachel accidentally reveals a secret to Ross; Monica's aunt refuses to take the lasagnas she ordered.

Phoebe's psychiatrist boyfriend (Fisher Stevens) annoys her friends with his analyses of their lives.

It's Valentine's Day and, out on his first date in nine years, Ross meets up with his ex-wife. Meanwhile, Monica, Phoebe and Rachel rebel against the spirit of the day by burning mementos of past relationships.

A "high-spirited" restaurant owner wolfs down the gourmet meal Monica created as part of a job interview.

Joey asks Phoebe's sister (Lisa Kudrow in a dual role) on a date; Ross takes Lamaze classes with Carol (Jane Sibbett) and Susan (Jessica Hecht).

Monica takes Rachel to the hospital; Ross asks his dad (Elliott Gould) for advice on becoming a father.

When the girls lose money to the guys in a poker match they seek out Monica's Aunt Iris, a famous card player, for lessons and then demand a rematch.

Rachel accidentally lets Ross' pet monkey escape, and the friends form a search party; she is then horrified to learn that her former best friend is engaged to her ex-fiance.

Rachel is asked to be the maid of honor in her ex-fiance's (Mitchell Whitfield) wedding.

Monica, Rachel and Phoebe go on a covert operation to track down the woman who stole Monica's credit card.

Monica's new boyfriend (Stan Kirsch) exposes his own secret after she admits her true age.

Carol (Jane Sibbett) begins labor; Ross and Susan (Jessica Hecht) clash.

Rachel discovers Ross' feelings for her when he goes out of town on a business trip.

Joey accidentally informs a cast member (Susan Sarandon) that she will be fired so that his character will get her character's brain.

Wanda's excited about getting a tattoo; police crack down on jaywalkers.

Brent installs a security camera at Corner Gas; Davis gets a stun gun.

Wanda helps Brent investigate his nightmares about being attacked by Michael J. Fox.

Brent uses a drone to harass Oscar; Wanda and Emma attempt to measure the intelligence of turkeys.

A crew of friends knows where they are as soon as they enter the Cash Cab.

Brian, Dylan, Barbara and Brett rely on their excellent teamwork to make it to their destination unscathed.

Wanda's excited about getting a tattoo; police crack down on jaywalkers.

Brent installs a security camera at Corner Gas; Davis gets a stun gun.

Wanda helps Brent investigate his nightmares about being attacked by Michael J. Fox.

Brent uses a drone to harass Oscar; Wanda and Emma attempt to measure the intelligence of turkeys.

A crew of friends knows where they are as soon as they enter the Cash Cab.

Brian, Dylan, Barbara and Brett rely on their excellent teamwork to make it to their destination unscathed.

Wanda's excited about getting a tattoo; police crack down on jaywalkers.

Brent installs a security camera at Corner Gas; Davis gets a stun gun.

Wanda helps Brent investigate his nightmares about being attacked by Michael J. Fox.

Brent uses a drone to harass Oscar; Wanda and Emma attempt to measure the intelligence of turkeys.

Darlene continues her search for a new job; Becky is desperate to spend more time with Beverly Rose.

After a bout of sleepless nights with their new baby, Astrid and James are at their wits' end; they brave sleep training or the even more daunting challenge, finding the space to give the baby his own room.

With James planning to meet friends to do their yearly fantasy baseball draft, Astrid cannot shake the feeling that parental duties have eaten away at her old friendships and jumps at the chance for adult interaction.

Following embarrassing run-ins with her boss and co-workers, Astrid feels on the back foot and disconnected from her younger co-workers; Astrid realizes her best move might be to attend a drink night with the rest of her team.

Astrid and James enact a weekend screen ban; with new work assignments, they soon learn leading by example is more complicated than they originally thought; without the hypnotic power of electronics, they're in for an uphill battle.

Raj gets an inflated ego and makes a play for Penny after being referenced in a magazine article.

Leonard and his friends stage an intervention to force Sheldon to face his fear of driving.

Sheldon and the gang are confused when a young grad student is attracted to him.

Darlene continues her search for a new job; Becky is desperate to spend more time with Beverly Rose.

Harris makes a big announcement; Ben is overwhelmed with family responsibilities.

Sheldon takes matters into his own hands when Meemaw refuses to drive him to a lecture; Georgie tries to impress Veronica with his new business venture.

Sheldon is forced to take a break from science when his new obsession with "The Lord of the Rings" leads to an unhealthy habit; Missy asks George Sr. to teach her how to play catch.

After being released from the mental hospital, Dr. Sturgis unexpectedly breaks up with Meemaw.

A church carnival leads Missy to try out for the baseball team; Meemaw struggles after her breakup with Dr. Sturgis.

Raj gets an inflated ego and makes a play for Penny after being referenced in a magazine article.

Leonard and his friends stage an intervention to force Sheldon to face his fear of driving.

Sheldon and Wolowitz's fight over a parking spot at the university impacts the whole gang.

Todd and the team work to satisfy the unreasonable deadline set by the head office; Medhi recovers at the rehab, while all her colleagues at the refinery hope to pass the urine test.

Sheldon and the gang are confused when a young grad student is attracted to him.

Harris makes a big announcement; Ben is overwhelmed with family responsibilities.

Raj gets an inflated ego and makes a play for Penny after being referenced in a magazine article.

Leonard and his friends stage an intervention to force Sheldon to face his fear of driving.

Sheldon and the gang are confused when a young grad student is attracted to him.

Todd and the team work to satisfy the unreasonable deadline set by the head office; Medhi recovers at the rehab, while all her colleagues at the refinery hope to pass the urine test.

Sheldon takes matters into his own hands when Meemaw refuses to drive him to a lecture; Georgie tries to impress Veronica with his new business venture.

Sheldon is forced to take a break from science when his new obsession with "The Lord of the Rings" leads to an unhealthy habit; Missy asks George Sr. to teach her how to play catch.

After being released from the mental hospital, Dr. Sturgis unexpectedly breaks up with Meemaw.

A church carnival leads Missy to try out for the baseball team; Meemaw struggles after her breakup with Dr. Sturgis.

Sheldon and Wolowitz's fight over a parking spot at the university impacts the whole gang.

Todd and the team work to satisfy the unreasonable deadline set by the head office; Medhi recovers at the rehab, while all her colleagues at the refinery hope to pass the urine test.

Darlene continues her search for a new job; Becky is desperate to spend more time with Beverly Rose.

Harris makes a big announcement; Ben is overwhelmed with family responsibilities.

At bingo night, Wanda steps in after the regular bingo caller takes a tumble; she's a hit with everyone except Emma who takes drastic steps to restore her winning streak.

Hank is unaffected by the mosquitoes; Lacey contributes to the time capsule; Oscar goes back to work at Corner Gas.

Karen and Davis discover a mannequin dumped in the woods and try to solve the crime; at Corner Gas, Brent surprises Wanda with a scanner; in The Ruby, Lacey, Oscar, Hank, and Emma get drawn into an unusual bet about hand sanitizer.

Emma sees high art in Hank's hedge-trimming and sells his services around town; prompted by Oscar, Brent tries to collect on the IOUs piling up at Corner Gas, resorting to unorthodox means; Davis and Karen set up the cop shop in The Ruby.

Unassuming people enter a taxi cab as simple passengers taking a normal ride, only to be surprised when they discover that they're instant contestants; Adam Grove, asks the passengers trivia questions as he escorts them to their destination.

Unassuming people enter a taxi cab as simple passengers taking a normal ride, only to be surprised when they discover that they're instant contestants; Adam Grove, asks the passengers trivia questions as he escorts them to their destination.

At bingo night, Wanda steps in after the regular bingo caller takes a tumble; she's a hit with everyone except Emma who takes drastic steps to restore her winning streak.

Hank is unaffected by the mosquitoes; Lacey contributes to the time capsule; Oscar goes back to work at Corner Gas.

Karen and Davis discover a mannequin dumped in the woods and try to solve the crime; at Corner Gas, Brent surprises Wanda with a scanner; in The Ruby, Lacey, Oscar, Hank, and Emma get drawn into an unusual bet about hand sanitizer.

Emma sees high art in Hank's hedge-trimming and sells his services around town; prompted by Oscar, Brent tries to collect on the IOUs piling up at Corner Gas, resorting to unorthodox means; Davis and Karen set up the cop shop in The Ruby.

Unassuming people enter a taxi cab as simple passengers taking a normal ride, only to be surprised when they discover that they're instant contestants; Adam Grove, asks the passengers trivia questions as he escorts them to their destination.

Unassuming people enter a taxi cab as simple passengers taking a normal ride, only to be surprised when they discover that they're instant contestants; Adam Grove, asks the passengers trivia questions as he escorts them to their destination.

At bingo night, Wanda steps in after the regular bingo caller takes a tumble; she's a hit with everyone except Emma who takes drastic steps to restore her winning streak.

Hank is unaffected by the mosquitoes; Lacey contributes to the time capsule; Oscar goes back to work at Corner Gas.

Karen and Davis discover a mannequin dumped in the woods and try to solve the crime; at Corner Gas, Brent surprises Wanda with a scanner; in The Ruby, Lacey, Oscar, Hank, and Emma get drawn into an unusual bet about hand sanitizer.

Emma sees high art in Hank's hedge-trimming and sells his services around town; prompted by Oscar, Brent tries to collect on the IOUs piling up at Corner Gas, resorting to unorthodox means; Davis and Karen set up the cop shop in The Ruby.

Harris takes her anger out on Darlene; Dan and Louise spend an entire day in bed together.

Sheldon takes matters into his own hands when Meemaw refuses to drive him to a lecture; Georgie tries to impress Veronica with his new business venture.

Sheldon is forced to take a break from science when his new obsession with "The Lord of the Rings" leads to an unhealthy habit; Missy asks George Sr. to teach her how to play catch.

After being released from the mental hospital, Dr. Sturgis unexpectedly breaks up with Meemaw.

A church carnival leads Missy to try out for the baseball team; Meemaw struggles after her breakup with Dr. Sturgis.

When Sheldon bans Penny from the apartment for a series of petty infractions, Penny vows to get revenge.

Leonard inadvertently steals away the new woman Wolowitz thinks is the love of his life.

Sheldon is thrilled when Leonard starts dating a woman who meets Sheldon's stringent standards.

Harris takes her anger out on Darlene; Dan and Louise spend an entire day in bed together.

Mark fights for a spot in the Lanford High chamber orchestra; Jackie puts a lottery machine in the Lunch Box.

Rachel decides to look up her former boyfriend (Cosimo Fusco) when she is distraught over Ross' new girlfriend (Lauren Tom).

While tending his son, Ross expresses his displeasure when Phoebe tastes Carol's breast milk to check the temperature.

Monica and Rachel's grumpy downstairs neighbor (Larry Hankin) dies and leaves all his belongings to the girls.

The group is amazed when Phoebe marries a Canadian ice dancer (Steve Zahn) to help him get his green card.

When Sheldon bans Penny from the apartment for a series of petty infractions, Penny vows to get revenge.

Leonard inadvertently steals away the new woman Wolowitz thinks is the love of his life.

When Amy gets sick, Sheldon tries to nurse her back to health; Wolowitz and his father-in-law plan a fishing trip.

When Sheldon is accused of sexual harassment, he ends up getting Raj, Leonard and Wolowitz in trouble.

Sheldon is thrilled when Leonard starts dating a woman who meets Sheldon's stringent standards.

Mark fights for a spot in the Lanford High chamber orchestra; Jackie puts a lottery machine in the Lunch Box.

When Sheldon bans Penny from the apartment for a series of petty infractions, Penny vows to get revenge.

Leonard inadvertently steals away the new woman Wolowitz thinks is the love of his life.

Sheldon is thrilled when Leonard starts dating a woman who meets Sheldon's stringent standards.

When Amy gets sick, Sheldon tries to nurse her back to health; Wolowitz and his father-in-law plan a fishing trip.

Rachel decides to look up her former boyfriend (Cosimo Fusco) when she is distraught over Ross' new girlfriend (Lauren Tom).

While tending his son, Ross expresses his displeasure when Phoebe tastes Carol's breast milk to check the temperature.

Monica and Rachel's grumpy downstairs neighbor (Larry Hankin) dies and leaves all his belongings to the girls.

The group is amazed when Phoebe marries a Canadian ice dancer (Steve Zahn) to help him get his green card.

When Amy gets sick, Sheldon tries to nurse her back to health; Wolowitz and his father-in-law plan a fishing trip.

When Sheldon is accused of sexual harassment, he ends up getting Raj, Leonard and Wolowitz in trouble.

Harris takes her anger out on Darlene; Dan and Louise spend an entire day in bed together.

Mark fights for a spot in the Lanford High chamber orchestra; Jackie puts a lottery machine in the Lunch Box.

Brent brings his arsenal of pitches to a slo-pitch game; Davis and Karen can't ignore an act of vandalism.

Hank and Brent are made goodwill ambassadors; a new ATM machine draws a loyal following; Karen tries to learn French.

When Wullerton's weekly paper goes under, the gang worries the Dog River Howler will too; Wanda and Emma set out to recruit new advertisers, while Brent helps Oscar start an online version that raises eyebrows; Karen befriends a crow.

Ike's barn burns down and Lacey wants to help; Lacey organizes a bachelor auction to raise money, attracting a mystery woman who bids high for Brent; the more time the two spend together, the more curious the town gets about the woman's identity.

Unassuming people enter a taxi cab as simple passengers taking a normal ride, only to be surprised when they discover that they're instant contestants; Adam Grove, asks the passengers trivia questions as he escorts them to their destination.

Unassuming people enter a taxi cab as simple passengers taking a normal ride, only to be surprised when they discover that they're instant contestants; Adam Grove, asks the passengers trivia questions as he escorts them to their destination.

Brent brings his arsenal of pitches to a slo-pitch game; Davis and Karen can't ignore an act of vandalism.

Hank and Brent are made goodwill ambassadors; a new ATM machine draws a loyal following; Karen tries to learn French.

When Wullerton's weekly paper goes under, the gang worries the Dog River Howler will too; Wanda and Emma set out to recruit new advertisers, while Brent helps Oscar start an online version that raises eyebrows; Karen befriends a crow.

Ike's barn burns down and Lacey wants to help; Lacey organizes a bachelor auction to raise money, attracting a mystery woman who bids high for Brent; the more time the two spend together, the more curious the town gets about the woman's identity.

Unassuming people enter a taxi cab as simple passengers taking a normal ride, only to be surprised when they discover that they're instant contestants; Adam Grove, asks the passengers trivia questions as he escorts them to their destination.

Unassuming people enter a taxi cab as simple passengers taking a normal ride, only to be surprised when they discover that they're instant contestants; Adam Grove, asks the passengers trivia questions as he escorts them to their destination.

Brent brings his arsenal of pitches to a slo-pitch game; Davis and Karen can't ignore an act of vandalism.

Hank and Brent are made goodwill ambassadors; a new ATM machine draws a loyal following; Karen tries to learn French.

When Wullerton's weekly paper goes under, the gang worries the Dog River Howler will too; Wanda and Emma set out to recruit new advertisers, while Brent helps Oscar start an online version that raises eyebrows; Karen befriends a crow.

Ike's barn burns down and Lacey wants to help; Lacey organizes a bachelor auction to raise money, attracting a mystery woman who bids high for Brent; the more time the two spend together, the more curious the town gets about the woman's identity.

Dan and Jackie take a road trip to a hardware wholesaler in Oklahoma; Darlene heads out of town and leaves behind a plethora of to-do notes for Becky and Ben.

Rachel decides to look up her former boyfriend (Cosimo Fusco) when she is distraught over Ross' new girlfriend (Lauren Tom).

While tending his son, Ross expresses his displeasure when Phoebe tastes Carol's breast milk to check the temperature.

Monica and Rachel's grumpy downstairs neighbor (Larry Hankin) dies and leaves all his belongings to the girls.

The group is amazed when Phoebe marries a Canadian ice dancer (Steve Zahn) to help him get his green card.

Leonard asks Penny for advice when his new relationship starts moving too fast.

When Penny's comment about Wolowitz's love life sends him into a depressed stupor, his friends lose their most important teammate in an upcoming fighting-robot competition.

Sheldon develops a scientific procedure for making friends; Kripke controls a new supercomputer.

Dan and Jackie take a road trip to a hardware wholesaler in Oklahoma; Darlene heads out of town and leaves behind a plethora of to-do notes for Becky and Ben.

Louise gets into a feud with Becky after accidentally sending a rude message in the family text thread; Darlene tries to spice up her sex life with Ben.

The group's plans of throwing a birthday party are marred when money becomes an issue; Chandler sets a woman up to get a date with her, but a case of mistaken identities means that he discovers what she really thought of him.

Joey and Chandler decide to baby-sit and use Ben as a way to pick up women; Phoebe loses her job singing at Central Perk.

A drunken Rachel leaves a phone message for Ross that may change their relationship; Chandler regrets asking Monica to help him lose weight.

Rachel sees Ross' list comparing her pros and cons to Julie's (Lauren Tom).

Leonard asks Penny for advice when his new relationship starts moving too fast.

When Penny's comment about Wolowitz's love life sends him into a depressed stupor, his friends lose their most important teammate in an upcoming fighting-robot competition.

As the guys don costumes and go on a road trip to a comic book convention, the ladies decide to stay home and try to interpret a comic book.

Sheldon faces a crisis of confidence when he is forced to work with his nemesis, Barry Kripke; Raj and Howard buy expensive action figures of themselves.

Sheldon develops a scientific procedure for making friends; Kripke controls a new supercomputer.

Louise gets into a feud with Becky after accidentally sending a rude message in the family text thread; Darlene tries to spice up her sex life with Ben.

Leonard asks Penny for advice when his new relationship starts moving too fast.

When Penny's comment about Wolowitz's love life sends him into a depressed stupor, his friends lose their most important teammate in an upcoming fighting-robot competition.

Sheldon develops a scientific procedure for making friends; Kripke controls a new supercomputer.

As the guys don costumes and go on a road trip to a comic book convention, the ladies decide to stay home and try to interpret a comic book.

The group's plans of throwing a birthday party are marred when money becomes an issue; Chandler sets a woman up to get a date with her, but a case of mistaken identities means that he discovers what she really thought of him.

Joey and Chandler decide to baby-sit and use Ben as a way to pick up women; Phoebe loses her job singing at Central Perk.

A drunken Rachel leaves a phone message for Ross that may change their relationship; Chandler regrets asking Monica to help him lose weight.

Rachel sees Ross' list comparing her pros and cons to Julie's (Lauren Tom).

As the guys don costumes and go on a road trip to a comic book convention, the ladies decide to stay home and try to interpret a comic book.

Sheldon faces a crisis of confidence when he is forced to work with his nemesis, Barry Kripke; Raj and Howard buy expensive action figures of themselves.

Dan and Jackie take a road trip to a hardware wholesaler in Oklahoma; Darlene heads out of town and leaves behind a plethora of to-do notes for Becky and Ben.

Louise gets into a feud with Becky after accidentally sending a rude message in the family text thread; Darlene tries to spice up her sex life with Ben.

Lacey brings wine to dinner at the Leroy home; Hank's life is turned upside down when he wins the lottery.

Brent is stuck with a phony one hundred dollar bill; Lacey gets the job of landing a new doctor.

Hank wants to change methods; Wanda uncovers a shocking truth about founding pioneer woman Jane T. Wright; Oscar tries to sneak into the fair despite being banned.

Brent, Hank and Emma have a viral video contest; Karen and Davis try to GPStag the locals; Lacey asks Wanda to secure her WiFi.

Unassuming people enter a taxi cab as simple passengers taking a normal ride, only to be surprised when they discover that they're instant contestants; Adam Grove, asks the passengers trivia questions as he escorts them to their destination.

Unassuming people enter a taxi cab as simple passengers taking a normal ride, only to be surprised when they discover that they're instant contestants; Adam Grove, asks the passengers trivia questions as he escorts them to their destination.

Lacey brings wine to dinner at the Leroy home; Hank's life is turned upside down when he wins the lottery.

Brent is stuck with a phony one hundred dollar bill; Lacey gets the job of landing a new doctor.

Hank wants to change methods; Wanda uncovers a shocking truth about founding pioneer woman Jane T. Wright; Oscar tries to sneak into the fair despite being banned.

Brent, Hank and Emma have a viral video contest; Karen and Davis try to GPStag the locals; Lacey asks Wanda to secure her WiFi.

Unassuming people enter a taxi cab as simple passengers taking a normal ride, only to be surprised when they discover that they're instant contestants; Adam Grove, asks the passengers trivia questions as he escorts them to their destination.

Unassuming people enter a taxi cab as simple passengers taking a normal ride, only to be surprised when they discover that they're instant contestants; Adam Grove, asks the passengers trivia questions as he escorts them to their destination.

Lacey brings wine to dinner at the Leroy home; Hank's life is turned upside down when he wins the lottery.

Brent is stuck with a phony one hundred dollar bill; Lacey gets the job of landing a new doctor.

Hank wants to change methods; Wanda uncovers a shocking truth about founding pioneer woman Jane T. Wright; Oscar tries to sneak into the fair despite being banned.

Brent, Hank and Emma have a viral video contest; Karen and Davis try to GPStag the locals; Lacey asks Wanda to secure her WiFi.

Darlene figures out a new plan to afford Mark's college tuition; Jackie and Louise try to help Becky meet a new guy.

The group's plans of throwing a birthday party are marred when money becomes an issue; Chandler sets a woman up to get a date with her, but a case of mistaken identities means that he discovers what she really thought of him.

Joey and Chandler decide to baby-sit and use Ben as a way to pick up women; Phoebe loses her job singing at Central Perk.

A drunken Rachel leaves a phone message for Ross that may change their relationship; Chandler regrets asking Monica to help him lose weight.

Rachel sees Ross' list comparing her pros and cons to Julie's (Lauren Tom).

Sheldon's solution to Penny's financial difficulty leads to a confrontation between Leonard and Penny's ex-boyfriend.

Leonard and Penny are drawn together after a disastrous visit from Leonard's mother (Christine Baranski).

A paintball game leads to a fight between Sheldon and Penny, and romance for Leslie and Wolowitz.

Darlene figures out a new plan to afford Mark's college tuition; Jackie and Louise try to help Becky meet a new guy.

Neville confronts Jackie about loaning Dan money; Darlene attempts to play matchmaker for Mark.

Robin and Ted discover they get along better as roommates if they become friends with benefits; reality stars taunt Marshall from the pages of his magazine.

Lily and Marshall try to continue their airport reunion tradition; Barney and Ted offer to keep MacLaren's open during a blizzard so they can meet up with some college girls.

Ron's teasing makes Joyce question whether her friendship with a pharmaceutical rep is genuine; Alex has trouble letting Serena take on a new task; Matt finds a mentor in Bruce.

The gang thinks that Barney must have a secret girlfriend after noticing his bizarre behavior.

Sheldon's solution to Penny's financial difficulty leads to a confrontation between Leonard and Penny's ex-boyfriend.

Leonard and Penny are drawn together after a disastrous visit from Leonard's mother (Christine Baranski).

A fight between Sheldon and Leonard impacts Amy and Penny's living arrangements; while Howard is away, Raj helps Mrs. Wolowitz out.

The guys search for a perfect Valentine's Day gift for their significant others; Stuart and Raj host a "lonely people" party at the comic book store.

A paintball game leads to a fight between Sheldon and Penny, and romance for Leslie and Wolowitz.

Neville confronts Jackie about loaning Dan money; Darlene attempts to play matchmaker for Mark.

Sheldon's solution to Penny's financial difficulty leads to a confrontation between Leonard and Penny's ex-boyfriend.

Leonard and Penny are drawn together after a disastrous visit from Leonard's mother (Christine Baranski).

A paintball game leads to a fight between Sheldon and Penny, and romance for Leslie and Wolowitz.

A fight between Sheldon and Leonard impacts Amy and Penny's living arrangements; while Howard is away, Raj helps Mrs. Wolowitz out.

Robin and Ted discover they get along better as roommates if they become friends with benefits; reality stars taunt Marshall from the pages of his magazine.

Lily and Marshall try to continue their airport reunion tradition; Barney and Ted offer to keep MacLaren's open during a blizzard so they can meet up with some college girls.

Ron's teasing makes Joyce question whether her friendship with a pharmaceutical rep is genuine; Alex has trouble letting Serena take on a new task; Matt finds a mentor in Bruce.

The gang thinks that Barney must have a secret girlfriend after noticing his bizarre behavior.

A fight between Sheldon and Leonard impacts Amy and Penny's living arrangements; while Howard is away, Raj helps Mrs. Wolowitz out.

The guys search for a perfect Valentine's Day gift for their significant others; Stuart and Raj host a "lonely people" party at the comic book store.

Darlene figures out a new plan to afford Mark's college tuition; Jackie and Louise try to help Becky meet a new guy.

Neville confronts Jackie about loaning Dan money; Darlene attempts to play matchmaker for Mark.

Lacey discovers the dark secret behind the town's name; Brent's old band reunites.

A big air show is on nearby and the people of Dog River are excited; Lacey's breach of air show protocol has many in town upset.

Brent and Oscar form competing rinks in a cross-generational curling grudge match and Lacey is stuck in the middle.

Lacey's not invited to the Harvest Dance; Emma's dreaded jelly salad; Hank falls for highway worker.

Completely fooled by Adam, a group friends start off really well, but end up riding on two strikes.

One a snowy evening, a group of friends are excited to win some money.

Lacey discovers the dark secret behind the town's name; Brent's old band reunites.

A big air show is on nearby and the people of Dog River are excited; Lacey's breach of air show protocol has many in town upset.

Brent and Oscar form competing rinks in a cross-generational curling grudge match and Lacey is stuck in the middle.

Lacey's not invited to the Harvest Dance; Emma's dreaded jelly salad; Hank falls for highway worker.

Completely fooled by Adam, a group friends start off really well, but end up riding on two strikes.

One a snowy evening, a group of friends are excited to win some money.

Lacey discovers the dark secret behind the town's name; Brent's old band reunites.

A big air show is on nearby and the people of Dog River are excited; Lacey's breach of air show protocol has many in town upset.

Brent and Oscar form competing rinks in a cross-generational curling grudge match and Lacey is stuck in the middle.

Lacey's not invited to the Harvest Dance; Emma's dreaded jelly salad; Hank falls for highway worker.

As Mark's graduation approaches, he considers his relationship with his father; Louise plans a big graduation ceremony at the Lunch Box.

Robin and Ted discover they get along better as roommates if they become friends with benefits; reality stars taunt Marshall from the pages of his magazine.

Lily and Marshall try to continue their airport reunion tradition; Barney and Ted offer to keep MacLaren's open during a blizzard so they can meet up with some college girls.

Ron's teasing makes Joyce question whether her friendship with a pharmaceutical rep is genuine; Alex has trouble letting Serena take on a new task; Matt finds a mentor in Bruce.

The gang thinks that Barney must have a secret girlfriend after noticing his bizarre behavior.

Leonard, Sheldon and Wolowitz are ecstatic to learn that a famous science-fiction actress (Summer Glau) is aboard the train they are taking to San Francisco.

Penny's home business turns into a complete nightmare when Sheldon takes over.

Penny develops a rivalry with a sexy new female neighbor who threatens her position as queen bee of the building.

As Mark's graduation approaches, he considers his relationship with his father; Louise plans a big graduation ceremony at the Lunch Box.

A sudden turn of events forces the Conners to face the daily struggles of life in Lanford in a way they never have before.

Marshall and Lily are less than thrilled when they hear that Ted's college girlfriend (Laura Prepon) has moved to New York.

Ted learns that Lily not only planted another woman's earring in his bed for Karen to find, but she also meddled in some of his other relationships.

Barney and Marshall conspire to keep Ted in the dark when a client cancels plans to build its new headquarters using Ted's design.

Barney tries to prove Ted wrong by completing every task on Ted's list of things he thinks the gang is too old to do.

Leonard, Sheldon and Wolowitz are ecstatic to learn that a famous science-fiction actress (Summer Glau) is aboard the train they are taking to San Francisco.

Penny's home business turns into a complete nightmare when Sheldon takes over.

After a bad date, Koothrappali decides to never leave his apartment; Penny's acting skills impress Sheldon.

Leonard, Sheldon and Wolowitz talk to junior high girls about science-related careers; Raj plans a date with Lucy.

Conan O'Brien travels to Ghana with actor Sam Richardson whose family hails from the African nation.

Leonard, Sheldon and Wolowitz are ecstatic to learn that a famous science-fiction actress (Summer Glau) is aboard the train they are taking to San Francisco.

Penny's home business turns into a complete nightmare when Sheldon takes over.

Penny develops a rivalry with a sexy new female neighbor who threatens her position as queen bee of the building.

After a bad date, Koothrappali decides to never leave his apartment; Penny's acting skills impress Sheldon.

Conan O'Brien travels to Ghana with actor Sam Richardson whose family hails from the African nation.

Barney and Marshall conspire to keep Ted in the dark when a client cancels plans to build its new headquarters using Ted's design.

Barney tries to prove Ted wrong by completing every task on Ted's list of things he thinks the gang is too old to do.

After a bad date, Koothrappali decides to never leave his apartment; Penny's acting skills impress Sheldon.

Leonard, Sheldon and Wolowitz talk to junior high girls about science-related careers; Raj plans a date with Lucy.

As Mark's graduation approaches, he considers his relationship with his father; Louise plans a big graduation ceremony at the Lunch Box.

A sudden turn of events forces the Conners to face the daily struggles of life in Lanford in a way they never have before.

Brent behaves differently when Wanda wears a skirt to work; feeling empowered, she tests the limits of her feminine charm, but Brent's new attitude toward her may not be motivating.

Hank's premonitions freak Wanda out; Lacey fixes the pothole.

When Emma gives Brent flack over his coffee drinking, he vows to quit cold turkey if she quits knitting; as Brent struggles in a caffeine free world, Emma takes up a new pastime.

Karen buys a new breathalyzer machine; Lacey puts up a new bulletin board.

Hank is being outwitted by a dog; Brent and Lacy create travel mugs for souvenirs.

Brent's annual trip to exotic locales stirs jealousy; Oscar experiments with e-mail.

Wolowitz and Leonard decide to check out a local bar on Ladies' Night.

Koothrappali and Leonard take Wolowitz to Las Vegas; Sheldon is forced to bunk with Penny when he gets locked out of his apartment.

Penny makes a surprising revelation about Leonard while on her date with Stuart; Wolowitz finds a critical design flaw in his NASA project.

While Leonard prepares for a three-month science expedition, he and Penny re-evaluate their feelings for each other.

After tampering with Sheldon's Arctic-expedition data, the guys follow him back to Texas, which threatens Leonard's chances for romance with Penny.

Penny and Leonard try to recover from an awkward hookup; Howard and Sheldon make a high-stakes bet.

Howard and Raj hit a Goth nightclub to meet women; Sheldon tries chocolate-based behavior modification on Penny.

Raj faces deportation if he does not find a job; Leonard and Penny deal with Howard as a third wheel.

Sheldon seeks revenge on his nemesis, Wil Wheaton; Wolowitz wants Penny to set him up with one of her friends.

Sheldon teaches Leonard how to understand football; a kite-fighting incident threatens Howard and Raj's friendship.

Sheldon tries to make peace when Leonard and Penny get into an argument.

Penny is forced to rely on Sheldon when she is injured while Howard, Leonard and Raj are away.

After being humiliated on the radio, Sheldon vows to destroy Kripke; Wolowitz tries to not ruin his new relationship with Bernadette.

Sheldon tries to help Penny understand Leonard's work; Wolowitz gets jealous when Leonard starts hanging out with his new girlfriend.

Wolowitz and Leonard decide to check out a local bar on Ladies' Night.

Koothrappali and Leonard take Wolowitz to Las Vegas; Sheldon is forced to bunk with Penny when he gets locked out of his apartment.

Penny makes a surprising revelation about Leonard while on her date with Stuart; Wolowitz finds a critical design flaw in his NASA project.

While Leonard prepares for a three-month science expedition, he and Penny re-evaluate their feelings for each other.

After tampering with Sheldon's Arctic-expedition data, the guys follow him back to Texas, which threatens Leonard's chances for romance with Penny.

Penny and Leonard try to recover from an awkward hookup; Howard and Sheldon make a high-stakes bet.

Howard and Raj hit a Goth nightclub to meet women; Sheldon tries chocolate-based behavior modification on Penny.

Raj faces deportation if he does not find a job; Leonard and Penny deal with Howard as a third wheel.

Sheldon seeks revenge on his nemesis, Wil Wheaton; Wolowitz wants Penny to set him up with one of her friends.

Sheldon teaches Leonard how to understand football; a kite-fighting incident threatens Howard and Raj's friendship.

Sheldon tries to make peace when Leonard and Penny get into an argument.

Penny is forced to rely on Sheldon when she is injured while Howard, Leonard and Raj are away.

After being humiliated on the radio, Sheldon vows to destroy Kripke; Wolowitz tries to not ruin his new relationship with Bernadette.

Sheldon tries to help Penny understand Leonard's work; Wolowitz gets jealous when Leonard starts hanging out with his new girlfriend.

Wolowitz and Leonard decide to check out a local bar on Ladies' Night.

Koothrappali and Leonard take Wolowitz to Las Vegas; Sheldon is forced to bunk with Penny when he gets locked out of his apartment.

Penny makes a surprising revelation about Leonard while on her date with Stuart; Wolowitz finds a critical design flaw in his NASA project.

While Leonard prepares for a three-month science expedition, he and Penny re-evaluate their feelings for each other.

After tampering with Sheldon's Arctic-expedition data, the guys follow him back to Texas, which threatens Leonard's chances for romance with Penny.

Penny and Leonard try to recover from an awkward hookup; Howard and Sheldon make a high-stakes bet.

Howard and Raj hit a Goth nightclub to meet women; Sheldon tries chocolate-based behavior modification on Penny.

Raj faces deportation if he does not find a job; Leonard and Penny deal with Howard as a third wheel.

Sheldon seeks revenge on his nemesis, Wil Wheaton; Wolowitz wants Penny to set him up with one of her friends.

Sheldon teaches Leonard how to understand football; a kite-fighting incident threatens Howard and Raj's friendship.

Sheldon tries to make peace when Leonard and Penny get into an argument.

Penny is forced to rely on Sheldon when she is injured while Howard, Leonard and Raj are away.

After being humiliated on the radio, Sheldon vows to destroy Kripke; Wolowitz tries to not ruin his new relationship with Bernadette.

Sheldon tries to help Penny understand Leonard's work; Wolowitz gets jealous when Leonard starts hanging out with his new girlfriend.

Lacey wants to start a running club; Hank's new crossing guard job.

Brent and Hank battle to take back their childhood tree house; Oscar's in denial.

Brent purchases a new digital camera; trivia showdown; Oscar is haunted by a ceramic gnome.

Oscar tries to fix a roof; Brent and Karen write a kid's book on bike safety.

Brent fears he is losing his hair; Wanda gets a new lamp and has to fight to keep it.

Lacey starts a coffee shop newsletter; Oscar's childhood dream.

Phoebe, hoping for a Christmas family reunion, travels to upstate New York in search of her biological father.

After deciding to give up acting, Joey is offered a role in a soap opera; Rachel dates a guy named Russ.

Ross helps put Carol and Susan's wedding plans back on track; Rachel's mother announces shocking new plans.

Joey starts dating a fan (Brooke Shields) who is gorgeous, but soon discovers that she's also crazy; Ross is reminded how much he misses his pet monkey and travels to the San Diego Zoo to find out what has happened to him.

Ross (David Schwimmer) catches up with Marcel on the set of a movie starring Jean-Claude Van Damme; Chandler gets a date with a girl he liked in fourth grade.

Monica's parents drop off some childhood keepsakes including her prom video.

Everyone at Monica's dad's birthday party finds it amusing that their middle-aged friend (Tom Selleck) is dating a woman in her 20s until Monica's parents learn that it is their daughter; Chandler and Joey argue over a dirty spoon.

Ross and Rachel become more than just friends; Monica caters a party for a dashing older doctor (Tom Selleck).

With Joey in his new apartment, Chandler gets a troublesome new roommate (Adam Goldberg); Phoebe makes a video for "Smelly Cat"; Ross and Monica find it nearly impossible to live together.

Joey's comments in a magazine for soap-opera fans could mean the end of his role on "Days of our Lives.".

Chandler wants his annoying new roommate (Adam Goldberg) to move out; Joey is facing some exorbitant bills; the girls learn from a book about personal empowerment.

Monica's boyfriend proves to be the life of the party when he attends a basketball game with Chandler and Joey.

Two bullies (Peter DeLuise, Nicky Katt) banish Ross and Chandler from Central Perk; Monica plays the stock market.

Rachel's separated parents (Marlo Thomas, Ron Leibman) unexpectedly attend her surprise birthday party.

Phoebe, hoping for a Christmas family reunion, travels to upstate New York in search of her biological father.

After deciding to give up acting, Joey is offered a role in a soap opera; Rachel dates a guy named Russ.

Ross helps put Carol and Susan's wedding plans back on track; Rachel's mother announces shocking new plans.

Joey starts dating a fan (Brooke Shields) who is gorgeous, but soon discovers that she's also crazy; Ross is reminded how much he misses his pet monkey and travels to the San Diego Zoo to find out what has happened to him.

Ross (David Schwimmer) catches up with Marcel on the set of a movie starring Jean-Claude Van Damme; Chandler gets a date with a girl he liked in fourth grade.

Monica's parents drop off some childhood keepsakes including her prom video.

Everyone at Monica's dad's birthday party finds it amusing that their middle-aged friend (Tom Selleck) is dating a woman in her 20s until Monica's parents learn that it is their daughter; Chandler and Joey argue over a dirty spoon.

Ross and Rachel become more than just friends; Monica caters a party for a dashing older doctor (Tom Selleck).

With Joey in his new apartment, Chandler gets a troublesome new roommate (Adam Goldberg); Phoebe makes a video for "Smelly Cat"; Ross and Monica find it nearly impossible to live together.

Joey's comments in a magazine for soap-opera fans could mean the end of his role on "Days of our Lives.".

Chandler wants his annoying new roommate (Adam Goldberg) to move out; Joey is facing some exorbitant bills; the girls learn from a book about personal empowerment.

Monica's boyfriend proves to be the life of the party when he attends a basketball game with Chandler and Joey.

Two bullies (Peter DeLuise, Nicky Katt) banish Ross and Chandler from Central Perk; Monica plays the stock market.

Rachel's separated parents (Marlo Thomas, Ron Leibman) unexpectedly attend her surprise birthday party.

Phoebe, hoping for a Christmas family reunion, travels to upstate New York in search of her biological father.

After deciding to give up acting, Joey is offered a role in a soap opera; Rachel dates a guy named Russ.

Ross helps put Carol and Susan's wedding plans back on track; Rachel's mother announces shocking new plans.

Joey starts dating a fan (Brooke Shields) who is gorgeous, but soon discovers that she's also crazy; Ross is reminded how much he misses his pet monkey and travels to the San Diego Zoo to find out what has happened to him.

Ross (David Schwimmer) catches up with Marcel on the set of a movie starring Jean-Claude Van Damme; Chandler gets a date with a girl he liked in fourth grade.

Monica's parents drop off some childhood keepsakes including her prom video.

Everyone at Monica's dad's birthday party finds it amusing that their middle-aged friend (Tom Selleck) is dating a woman in her 20s until Monica's parents learn that it is their daughter; Chandler and Joey argue over a dirty spoon.

Ross and Rachel become more than just friends; Monica caters a party for a dashing older doctor (Tom Selleck).

With Joey in his new apartment, Chandler gets a troublesome new roommate (Adam Goldberg); Phoebe makes a video for "Smelly Cat"; Ross and Monica find it nearly impossible to live together.

Joey's comments in a magazine for soap-opera fans could mean the end of his role on "Days of our Lives.".

Chandler wants his annoying new roommate (Adam Goldberg) to move out; Joey is facing some exorbitant bills; the girls learn from a book about personal empowerment.

Monica's boyfriend proves to be the life of the party when he attends a basketball game with Chandler and Joey.

Two bullies (Peter DeLuise, Nicky Katt) banish Ross and Chandler from Central Perk; Monica plays the stock market.

Rachel's separated parents (Marlo Thomas, Ron Leibman) unexpectedly attend her surprise birthday party.

Karen is upset when Emma cuts Brent's hair; Hank promises to stain Lacey's deck.

When a morning radio DJ impersonates Brent on his show, he goes out of his way to prove it's not him; Lacey is upset with her delivery service.

Wanda goes power mad; Davis and Karen make a dangerous bet; Oscar recalls "the incident" that made him give up the game for good; Brent and Hank are lost in the woods.

Wanda creates her dream video game; Lacey and Karen offer to help Davis release his pent-up stress; Oscar and Emma break out the crokinole board.

A group of friends who recognize Adam, manages to get a second strike just as they arrive at their destination.

An enthusiastic group jokes through the game, but suddenly find themselves with two strikes.

Karen is upset when Emma cuts Brent's hair; Hank promises to stain Lacey's deck.

When a morning radio DJ impersonates Brent on his show, he goes out of his way to prove it's not him; Lacey is upset with her delivery service.

Wanda goes power mad; Davis and Karen make a dangerous bet; Oscar recalls "the incident" that made him give up the game for good; Brent and Hank are lost in the woods.

Wanda creates her dream video game; Lacey and Karen offer to help Davis release his pent-up stress; Oscar and Emma break out the crokinole board.

A group of friends who recognize Adam, manages to get a second strike just as they arrive at their destination.

An enthusiastic group jokes through the game, but suddenly find themselves with two strikes.

Karen is upset when Emma cuts Brent's hair; Hank promises to stain Lacey's deck.

When a morning radio DJ impersonates Brent on his show, he goes out of his way to prove it's not him; Lacey is upset with her delivery service.

Wanda goes power mad; Davis and Karen make a dangerous bet; Oscar recalls "the incident" that made him give up the game for good; Brent and Hank are lost in the woods.

Wanda creates her dream video game; Lacey and Karen offer to help Davis release his pent-up stress; Oscar and Emma break out the crokinole board.

Darlene gets one surprise after another when David introduces his girlfriend at a parent-teacher conference and mentions that Mark and Harris will be spending the weekend with them; Dan hires Becky to help out at work.

Astrid and her sister suspect their mom is hiding something from them; they begin snooping around; their mother appears to be dating someone new; a request to launch a new product at work leads James to agree to meet with Ennis' cousin.

Between Astrid and her sister Dawn's kids, their mother Nisha is feeling burnt out on babysitting duties; when she announces her retirement from free childcare, it falls to Astrid and Dawn to try and get her back on board for watching their kids.

When Astrid and James' daughter Viv answers on a school assignment that she is Indigenous instead of her actual heritage, Indian, Astrid begins to feel guilty that she has not properly taught Viv about their family history.

When their son Felix's best friend moves away, Astrid and James try and help Felix make a new friend, but a sleepover soon has them questioning if Felix's potential new bestie might be a bad influence on their son.

Sheldon and Koothrappali attend a university mixer; Leonard discovers that Penny believes in psychics.

After their apartment is robbed, Leonard and Sheldon turn to their friends to create a state-of-the-art security system.

Sheldon tries to figure out the answer to a physics problem by working with Penny.

Darlene gets one surprise after another when David introduces his girlfriend at a parent-teacher conference and mentions that Mark and Harris will be spending the weekend with them; Dan hires Becky to help out at work.

An email from the school banning certain Halloween costumes, including Mark's, sets off an argument between Dan and Darlene; Jackie introduces someone to the family at the Halloween party and insists that Dan vet him, but she immediately regrets it.

Sheldon starts an internet flame war; Missy stands up to the boys on her baseball team; Meemaw is unhappy when George Sr. spends time with her new boyfriend.

The University makes George Sr. a lucrative job offer in hopes of recruiting Sheldon; Georgie gets a job working for Meemaw's new boyfriend; Mary is determined to rid her home of greed.